Valve-grinding attachment



Jan. 23,1923. 1,443,228

E. LITTLE. VALVE GRINDING ATTACHMENT. FILED APR. 12, 1922.

2 SHEETS SHEET 1 7 B mar il 172 6 INVENTOR ATTORN E Y Ian. 23, 1923.

1,443,228 E. LITTLE. VALVE GRINDING A 0 FILED APR. 12 1922 2 SSSSSSSHEET 2 f; "i 9 y 10 6/ a? v may:

Patented Jan. 23, 1923.

UNETED STATElZ EDWARD LITTLE, 0F CUTLER, CALIFORNIA. A

VALVE-GRINDING ATTACI-ILIENT.

Application filed April 12, 1922. Serial No. 552,031.

To all whom it may canoe 1v) Be it known that I l lnwann Lrrtrnn, a.

citizen of the United States residing at Cutler, in the county of Tulareand State of California, have invented new and useful Improvements inValveGrinding Attach- 1nents,of which the following is a specification.

This inventioi'i relates to valve grinders, particularly to grindingdevices designed for association with and to be mounted upon thecylinder block of an automobile engine and operable whereby to grind theset valve which generally is in a very inaccessible position so that itcannot be reached by means of the ordinary valve grinding tool.

An important object is the provision of a gear driven device of thischaracter which includes a support which is longitudinally adjustablymounted upon a base which is bolted onto the cylii'ider block, thearrangement being such that the support when in different adjustedpositions will facilitate reachiiig the various valves without unboltingthe base.

A further object is the provision of a valve grinding attachment of thischaracter which will permit a rocking action of the support during thegrinding" operation so that the valves may be permitted to rise upwardlyfrom their seats a slight distance as" is preferred in actual practicein order to avoid grooving the valve.

An additional object is the provision of a device of this characterwhich will be simple and inexpensive in manufacture, rapid and laborsaving in action. positive and durable in service and a gene al ini'n'oveinent in the k With the above and other oh i o 1 vantages in vleu:the in eiition co o the details of cor ruction to be her matter morefully desci-i led. and ill.

k 36d and Clulll a trated in accompaying diawiurge wherein Figure l isplan view o'l' my device showing it in operative position upon a cyl-:inder block.

Figure 2 is a side elevation thereof.

Figure 3 is a side elevation showing a diiierent adjustment a portion ofthe engine being in section,

Figure t is a longitudinal section through the device,

Figure 5 is a bottom plan view of the supporting member the F igure 6 isa perspective view of the at taching member,

Figure 7 is a fragmentary perspective view of the base or supportingmember,

Figure 8 is a detail perspective view of one of the genre, the outerportion thereof being broken away the view illustrating the means forattaching the operating handle and I Figure 9 is a detail perspectiveview with parts broken away, showing the valve engaging member.

Referring more particularly to the drawings the letter A indicates thecylinder' block oi an engine, and B designates the .valves therein to beground. in carrying out my invention, I provide a device which includesa base 10 which may be constructed of sheet metal or as a casting andwhich includes an at'achingg' portion 11 ot plate like iorin providedwith holes for the passage oi two oi the securing bolts" C whichordinarily hold the cylinder heads in position. This base member:lurther.includes an upstanding portion 13 which is termed at itscorners with lugs let for a purpose to be described.

Designed for association with this base an elongated supporting plate 15which is provided at spaced points with transverse grooves 16 which aredesigned to be engaged upon the projecting: linzs l lot the base memberfor the purpose oi holding the supporting plate at any desired adjustedposition with respect to the cylinder block. It is to be observed thatthe provision of the QIIOOVGS 16 will permit the supporting: plate tohave a rocking: action upon the base for a bin." i'sc to be de ribed. Th

spaced 1 and 19 within the ii s led the sl I l -ashes nlth a sliniiarwhi ournaled in the hole 18. L he ge .r 2d

22 in turn meshes with a similar rar which has its shaft 25 ournaled inthe hole 19. It is intended that the gear 21 be in valve grinding tool.25 ot coiwentional formation but v-rhich is here shown as being ofplate-like form with tits or lugs 29 designed to be engaged withingrooves pro vided in the top of a valve head. The shaft members 23 and25 are likewise provided at one end with similar grooves 30 and 31respectively within which may be engaged similar valve tools, that issimilar to the valve tool 28, while the; other end of the shaft members23 and 25 are formed for connection with any suitable tool indicated. at32 for effecting rotary movement.

Assuming that the device has been constructed and assembled as abovedescribed, the operation is as follows: The base n1ember 10 is of coursebolted onto the cylinder block by means of the bolt C and the platemember 153 is disposed with the desired one of the grooves 16 inengagement with lugs 14: on the base member. The different gears areplaced with their shaft in the holes 17, 18 and 19 and rotary movementis imparted to the endmost gear 9A by means of the handle device shown.This movement will be connnunicated to both of the other gears 21 and 22so that they will both be rotated and will carry with them whatevervalve grinding tools 28 are associated with them. If desired the valvegrinding tool may be associated with each gez-ir, although it may beassociated with only the endniiost gear 2i so as to facilitate grindingof a valve which is generally the last one which is ordinarily hard toreach. In this way it will be seen that by means of this device threevalves may be ground simultaneously, or any tool or any one alone. henit is desired to project the bearing 16 under the cowl of the automobilewithin which the engine is located, it is of course necessary that theendmost groove 16 most remote from the engine be the one engaged uponthe lugs 14L of the base member. It is also to be observed that there isa capability of rocking action of the plate member 15 upon the base itunseat-mg of the valves while Md as is the general e to prevent groovingof the valves and their 5e; by continuous rotary moveiient withoutinterruption.

From the foregoing description and study of the drawings it will beapparent that I have thus provided a simply constructed and consequentlyinexpensive valve grinding device which will be highly advantageous andtime saving especially for reaching valves which are ordinarilyinaccessible or difiicult of access. Owing to the simplicity of theconstruction and the fewness of the parts, it will be apparent that thedevice will not only be inexpensive to manufacture, but will be notlikely to get out of order so that it should have a long life andsatisfactorily perform all the functions for which it is intended.

While I have shown and described the preferred embodiment of theinvention, it is of course to be understood. that I reserve the right tomake such changes in the form,construction and arrangement of parts aswill not depart from the spirit of the invention or the scope of thesubjoined claims.

What is -laimed is:

1. A device of the character described comprising a base member designedto be secured upon the block of an engine, and formed with an upstandingportion, an elongated plate member detachably and adjustably engagedupon the upstanding portion of the base member, a series of gearsjournaled upon said elongated plate member, means for imparting rotationto one of the endmost gears, and a plurality of valve grinding membersassociated with the re-- speetive gears.

2. A device of the character described comprising a base member designedto be secured upon the block of an engine, and formed with an upstandingportion, an elongated plate member detachably and ad justably engagedupon the upstanding portion of the base member, a series of gearsjournaled upon said elongated plate member, means for imparting rotationto one 01"? the endmost gears, and a plurality of valve grinding membersassociated with the respective gears, said member being formed with. aplurality oil. transverse grooves sc lectively engageable upon theupstanding portion of the base member,

In testimony whereof I LQUV signature.

